Evaluating the risk of operational safety for dangerous goods in airfreights – A revised risk matrix based on fuzzy AHP

Hsu, Wen‐Kai K.; Huang, Show‐Hui S.; Tseng, Wen-Jui

doi:10.1016/j.trd.2016.08.018

Cited by 50 publications

(31 citation statements)

References 18 publications

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“…At present, the two-dimensional risk matrix model of frequency -consequence is commonly used. Hsu et al [25] used the improved frequency-consequence matrix to evaluate the transportation safety of dangerous goods by air.…”

Section: Introductionmentioning

confidence: 99%

Risk Assessment of Shunting Derailment Based on Coupling

Zhang

Sun

2019

Symmetry

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Shunting operation is risky and complex because of the nonlinear coupling effect of personnel, equipment, environment and management, which reflects symmetry, can easily cause shunting derailment accidents. Traditional railway safety risk assessment techniques seldom consider the nonlinear coupling relationships of hazard factors in the shunting process. The Decision Making Trial and Evaluation Laboratory (DEMATEL) and Analytic Network Process (ANP), which are applicable to the coupling analysis of complex systems, have been used in many areas to overcome this shortcoming. Thus, this paper built a hybrid model, developed by integrating DEMATEL and ANP methodologies, to determine the multifarious interdependencies’ relative strengths among the hazard factors and to assess the relative importance of the hazard factors with Super Decision (SD) software. By constructing the "frequency-consequence-vulnerability" three-dimensional risk parameter model, the risk magnitude of shunting derailment could be obtained through risk aggregation process. Finally, the model was applied to the risk assessment of shunting derailment in Huangyangcheng station, the results revealed that this model was effective and efficient, which could yield more reliable and realistic solutions to the shunting safety.

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Section: Introductionmentioning

confidence: 99%

Risk Assessment of Shunting Derailment Based on Coupling

Zhang

Sun

2019

Symmetry

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“…Some studies have proposed specific mathematical formulas to calculate the accident rate, damage rate, release rate, and concentration level of released dangerous goods in railway transportation [10,12], but no empirical application currently exists. In terms of the combined qualitative and quantitative approach, a popular tool is the risk matrix, which couples hazard severity levels with likelihood levels to determine a cumulative risk level based on an expert's score on each risk factor [13,14]. Another representative decision-making method combining qualitative and quantitative techniques is the analytic hierarchy process (AHP).…”

Section: Introductionmentioning

confidence: 99%

“…Another representative decision-making method combining qualitative and quantitative techniques is the analytic hierarchy process (AHP). Different types of risk factors are identified hierarchically in the first step via qualitative analysis and then prioritized in order of importance as calculated using a quantitative method [11,14,15]. The advantage of AHP lies in the use of expert experience to quantify the relative importance of factors at different levels.…”

Section: Introductionmentioning

confidence: 99%

Safety Assessment Model for Dangerous Goods Transport by Air Carrier

Zhao

Zhang

2018

Sustainability

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The safety of dangerous goods transport by air is directly related to human health and environmental pollution. This paper investigates a model to evaluate the safety performance of the transport of dangerous goods by air carriers. Based on a literature review, international regulations related to dangerous goods air transportation, and expert opinions, this paper identifies an assessment factor system with five drivers: organization/regulations, equipment/facilities, operations, emergency, and training. A hybrid evaluation method of a joint analytical hierarchy process and entropy weight is used to determine the importance of each factor and driver. The results suggest that the regulation of dangerous goods acceptance, sufficient equipment/facilities, and the condition of the equipment/facilities are the most important factors affecting the safety performance of dangerous goods transportation by air. An empirical study reveals that the proposed model is stable and reliable; thus, the model can guide resource allocation for air carriers to improve safety management of dangerous goods transportation.

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“…Risk matrices are easy to implement and can be implemented even where data are limited. Therefore, they have become popular decision-support tools in both the public and private sectors, (3)(4)(5)(6) in areas such as well-integrity risk, (7) drilling hazard management, (8) climatic change responses, (9) and so on. However, despite its simplicity and wide usage, recent research has revealed several flaws in the risk matrix.…”

Section: Introductionmentioning

confidence: 99%

How to Design Rating Schemes of Risk Matrices: A Sequential Updating Approach

Bao

2017

Risk Analysis

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Risk matrices have been widely used as a risk evaluation tool in many fields due to their simplicity and intuitive nature. Designing a rating scheme, i.e., determining the number of ratings used in a risk matrix and assigning different ratings to different cells, is an essential part of risk matrix construction. However, most of the related literature has focused on applying a risk matrix to various fields, instead of researching how to design risk matrices. Based on the analysis of several current rules, we propose a new approach, namely, the sequential updating approach (SUA), to design the rating scheme of a risk matrix in a reliable way. In this article, we propose three principles and a rating algorithm based on these principles. The three principles, namely, adjusted weak consistency, consistent internality, and continuous screening, characterize a good rating scheme. The resulting rating scheme has been proven to be unique. A global rating algorithm is then proposed to create the design that satisfies the three principles. We then explore the performance of the SUA. An illustrative application is first given to explain the feasibility of our approach. The sensitivity analysis shows that our method captures a resolution-reliability tradeoff for decisionmakers in choosing an appropriate rating scheme for a risk matrix. Finally, we compare the designs based on the SUA and Cox's axioms, highlighting the advantages of the SUA.

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Evaluating the risk of operational safety for dangerous goods in airfreights – A revised risk matrix based on fuzzy AHP

Cited by 50 publications

References 18 publications

Risk Assessment of Shunting Derailment Based on Coupling

Risk Assessment of Shunting Derailment Based on Coupling

Safety Assessment Model for Dangerous Goods Transport by Air Carrier

How to Design Rating Schemes of Risk Matrices: A Sequential Updating Approach

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